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There is no possible way that 2 people with type O+ blood could produce B+ blood. type O+ and O+ blood can only produce O+ blood. Type O blood is recessive to both type A and B blood, therefore someone with type O blood has ONLY type O.

However, looking at it the other way around; type A and type B blood can have two different genotypes: AA or AO, BB or BO. So if 2 people were to have children and one of them was either AO/BO and the other was AO/BO, there is a 25% chance of one of their children being type O. There is also type AB blood, but that is irrelevant to this question.

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Yazmin Sawayn

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2y ago

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What blood types can combine to create a B positive blood type"?

To create a B positive blood type, the blood types that can combine are B and either O or B.


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Can a mother with B positive blood and father with O positive blood have a baby with B positive blood?

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Can parent both blood type o positive have a child with b positive blood type?

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The possibilities include B positive, B negative, O positive, O negative.


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Can parents with b positive and o positive blood have a child with b type blood?

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